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LSF0108: LSF0108: IBIS model selection

Part Number: LSF0108
Other Parts Discussed in Thread: LSF0101

Hi,

I am using LSF0108 as a level shift between 1.8V and 3.3V, when doing the SI simulation, which model should I use in the IBIS model? The IBIS specifies different model for different VCC, but I have VCCA as 1.8V and VCCB as 3.3V, so which one should I use? Should I use one model for 1.8V to 3.3V conversion and the other model for 3.3V to 1.8V conversion?

|******************************************************************************
| Model LSF0101_IO_S
|******************************************************************************
|
[Model Selector] LSF0101_IO_S
|
LSF0101_IO_50A_S 5 volt Vcc 
LSF0101_IO_33_S 3.3 volt Vcc 
LSF0101_IO_25_S 2.5 volt Vcc 
LSF0101_IO_18_S 1.8 volt Vcc 
LSF0101_IO_12A_S 1.2 volt Vcc